Grabbing device and method for ion source consumables

Abstract

The invention provides an ion source consumable grabbing device and method.The ion source consumable grabbing device comprises a fixing base, the ion source consumable comprises a base and a capillary tube, and one end of the capillary tube is inserted into the base; the guide rail and the driving unit are arranged on the fixed seat; the moving part is arranged on the guide rail and is driven by the driving unit to move forwards or backwards along the guide rail; the moving part comprises an opening and a bearing part communicated with the opening and used for bearing the ion source consumables, the bearing part comprises an inner diameter decreasing section, a large inner diameter section and a small inner diameter section which are sequentially arranged, the capillary tube is allowed to penetrate through the opening, the base is allowed to enter the large inner diameter section, and the small inner diameter section is allowed to penetrate through the small inner diameter section. The section with the smaller inner diameter allows the capillary tube to pass through and blocks the base; the fixing base is provided with a first gas channel, and the capillary tube of the consumable located on the bearing part is communicated with the first gas channel. The grabbing device has the advantages of accurate grabbing, high efficiency and the like.

Description

Technical Field

[0001] The present invention relates to ionization, and particularly to a grasping device and method for ion source consumables. Background Art

[0002] Currently, mass spectrometry has extremely wide applications in fields such as environmental detection, clinical analysis, organic synthesis, drug research and development, protein and metabolomics. However, the current application of mass spectrometry faces two major challenges: 1. The electro-gripper in the opening and closing form is used to grasp the ion source consumables, with low position accuracy and unable to achieve automatic centering; such as the applicant's previous patent application CN 2021116684044.

[0003] 2. The ventilation effect of the ion source consumables is not good, and it is difficult to form a sealed cavity. Summary of the Invention

[0004] To solve the deficiencies in the above-mentioned prior art solutions, the present invention provides a grasping device for ion source consumables.

[0005] The object of the present invention is achieved through the following technical solutions: A grasping device for ion source consumables, including a fixed seat, the ion source consumables include a base and a capillary tube, and one end of the capillary tube is inserted into the base; the grasping device for ion source consumables further includes: A guide rail and a driving unit, the guide rail and the driving unit are arranged on the fixed seat; A moving member, the moving member is arranged on the guide rail and moves forward or backward along the guide rail under the drive of the driving unit; the moving member includes an opening and a bearing part communicated with the opening for bearing the ion source consumables, the bearing part includes an inner diameter decreasing section, an inner diameter larger section and an inner diameter smaller section arranged in sequence, the opening allows the capillary tube to pass through, the inner diameter larger section allows the base to enter, and the inner diameter smaller section allows the capillary tube to pass through and blocks the base; The fixed seat has a first gas channel, and the capillary tube of the consumables in the bearing part is communicated with the first gas channel.

[0006] Another object of the present invention is to provide a grasping method for ion source consumables, and this object of the invention is achieved through the following technical solutions: A grasping method for ion source consumables, the ion source consumables include a base and a capillary tube, and one end of the capillary tube is inserted into the base, the grasping method for ion source consumables is: Under the drive of the driving unit, the moving member moves forward along the guide rail, and the guide rail is arranged on the fixed seat; Move the moving member, and the capillary passes through the opening on the moving member and enters the smaller-inner-diameter section, and the base enters the larger-inner-diameter section and is blocked by the smaller-inner-diameter section; Driven by the driving unit, the moving member moves reversely along the guide rail, one end of the ion source consumable contacts the fixing seat and is sealed, and the first gas channel in the fixing seat communicates with the capillary.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High positioning accuracy; By providing a three-stage bearing part on the moving member, the ion source consumable can easily enter and is borne by the smaller-inner-diameter section, and the base is located in the larger-inner-diameter section, improving the positioning accuracy; The conductive probe passes through the guiding hole and is press-fitted and clamped, and is not easy to loosen and fall off; 2. Good ventilation effect; A second gas channel communicating with the capillary is provided in the deformable member. When the annular part of the deformable member presses the fixing seat, it deforms, realizing the seal between the annular part and the fixing seat, and at the same time enabling the first gas channel and the second gas channel in the fixing seat to communicate. Furthermore, the gas sequentially passes through the first gas channel, the second gas channel and the capillary, and the ventilation effect is good; The design of the annular groove can achieve a better sealing effect. Description of the Drawings

[0008] Referring to the drawings, the disclosure of the present invention will become easier to understand. It is easy for those skilled in the art to understand that these drawings are only used to illustrate the technical solutions of the present invention and are not intended to limit the protection scope of the present invention. In the drawings: Figure 1 is a schematic structural view of a grasping device for an ion source consumable according to an embodiment of the present invention; Figure 2 is another state schematic view of a grasping device for an ion source consumable according to an embodiment of the present invention; Figure 3 is a schematic structural view of a moving member according to an embodiment of the present invention; Figure 4 is a cross-sectional schematic view of a deformable member according to an embodiment of the present invention; Figure 5 is a cross-sectional schematic view of an ion source consumable according to an embodiment of the present invention. Detailed Embodiments

[0009] Figures 1 - 5The following description and the following description describe alternative specific embodiments of the present invention to teach those skilled in the art how to implement and reproduce the present invention. To teach the technical solution of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations or substitutions derived from these specific embodiments will fall within the scope of the present invention. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present invention. Thus, the present invention is not limited to the following alternative specific embodiments, but is defined only by the claims and their equivalents.

[0010] Embodiment 1

[0011] The grasping device for the ion source consumables of Embodiment 1 of the present invention is as Figures 1 - 2 shown, and the grasping device for the ion source consumables includes: Ion source consumables 11, including a base 13 and a capillary 12, one end of the capillary 12 is inserted into the base 13; A fixed seat 21, the fixed seat 21 is arranged on the robotic arm; A guide rail 22 and a driving unit 31, the guide rail 22 and the driving unit 31 are arranged on the fixed seat 21; A moving member 41, the moving member 41 is arranged on the guide rail 22 and moves forward or backward along the guide rail 22 under the drive of the driving unit 31; As Figure 3 shown, the moving member 41 includes an opening 434 and a bearing part communicating with the opening 434 for bearing the ion source consumables 11. The bearing part includes an inner diameter reducing section 431, an inner diameter larger section 432 and an inner diameter smaller section 433 arranged in sequence. The opening 434 allows the capillary 12 to pass through, the inner diameter larger section 432 allows the base 13 to enter, and the inner diameter smaller section 433 allows the capillary 12 to pass through and blocks the base 13; The fixed seat 21 has a first gas channel, and the capillary 12 of the consumables 11 in the bearing part communicates with the first gas channel.

[0012] In order to conveniently grasp the ion source consumables 11, further, as Figure 3 shown, the moving member 41 includes a first part 42 and a second part 43. The first part 42 is arranged on the guide rail 22, the second part 43 is connected to the first part 42 and is perpendicular to the first part 42, and the bearing part is arranged on the second part 43.

[0013] In order to achieve sealing to improve the ventilation effect, further, the ion source consumables 11 further include: A deformable member 15, as Figure 4As shown, the deformable member 15 includes an annular portion 152, a body 151, and a cylindrical portion 153. A second gas passage 154 is provided inside the body 151, and a guiding hole 155 allowing the conductive probe 16 to pass through is provided in the second gas passage 154. The annular portion 152 is located at one end of the body 151, and the cylindrical portion 153 is located at the other end of the body 151.

[0014] As Figure 5 As shown, the cylindrical portion 153 is snapped into the base 13, and the body 151 and the annular portion 152 are exposed outside the base 13. The capillary 12 passes through the base 13, the cylindrical portion 153, and the body 151 and communicates with the second gas passage 154. The conductive probe 16 passes through the guiding hole 155 and enters the capillary 12.

[0015] To improve the positioning accuracy and sealing effect, further, the fixing seat 21 has an annular groove surrounding the outlet of the first gas passage 152, and the annular groove allows the annular portion to enter. The central axis of the annular groove is collinear with the central axis of the bearing portion.

[0016] To improve the sealing effect between the deformable member 15 and the base 13, further, a plurality of annular protrusions 156 are provided on the outer side of the cylindrical portion 153 and are snapped into the base 13.

[0017] The method for grasping the ion source consumable in the embodiment of the present invention, that is, the working method of the grasping device in this embodiment, the method for grasping the ion source consumable is as follows: Driven by the driving unit 31, the moving member 41 moves forward along the guide rail 22, and the guide rail 22 is provided on the fixing seat 21; As Figure 1 As shown, move the moving member 41, and the capillary 12 passes through the opening 434 on the moving member 41 and enters the smaller inner diameter section 433. The base 13 enters the larger inner diameter section 432 and is blocked by the smaller inner diameter section 433; As Figure 2 As shown, driven by the driving unit 31, the moving member 41 moves backward along the guide rail 22, and one end of the ion source consumable 11 contacts the fixing seat 21 and is sealed. The first gas passage in the fixing seat 21 communicates with the capillary 12.

[0018] To achieve sealing to improve the ventilation effect, further, the ion source consumable 11 further includes: The deformable member 15, as Figure 4As shown, the deformable member 15 includes an annular portion 152, a body 151, and a cylindrical portion 153. A second gas passage 154 is provided inside the body 151. A guiding hole 155 allowing the conductive probe 16 to pass through is provided in the second gas passage 154. The annular portion 152 is at one end of the body 151, and the cylindrical portion 153 is at the other end of the body 151.

[0019] As Figure 5 shown, the cylindrical portion 153 is snapped into the base 13, and the body 151 and the annular portion 152 are exposed outside the base 13. The capillary 12 passes through the base 13, the cylindrical portion 153, and the body 151 and communicates with the second gas passage 154. The conductive probe 16 passes through the guiding hole 155 and enters the capillary 12.

[0020] To improve the positioning accuracy and sealing effect, further, the fixing seat has an annular groove surrounding the outlet of the first gas passage, and the annular portion is allowed to enter the annular groove.

[0021] To conveniently grasp the ion source consumable 11, further, as Figure 3 shown, the moving member 41 includes a first part 42 and a second part 43. The first part 42 is arranged on the guide rail 22, and the second part 43 is connected to the first part 42 and is perpendicular to the first part 42. The carrying portion is arranged on the second part 43.

[0022] Embodiment 2

[0023] Application example of the grasping device and method of the ion source consumable according to Embodiment 1 of the present invention in single cell detection.

[0024] In this application example, as Figures 1 - 2 shown, a linear guide rail 22 is arranged on the fixing seat 21. The driving unit 31 includes a push rod motor 32 and a movable push rod 33. The movable push rod 33 is connected to the first part 42 of the moving member 41.

[0025] As Figure 3As shown, the first part 42 and the second part 43 are vertically arranged, and the first part 42 is arranged on the guide rail 22. The second part 43 has an opening 434 and a bearing part. The bearing part includes a section 431 with a decreasing inner diameter (to facilitate the base 13 of the ion source consumable 11 to enter the section 432 with a larger inner diameter), a section 432 with a larger inner diameter, and a section 433 with a smaller inner diameter. The section 432 with a larger inner diameter matches the base 13 of the ion source consumable 11 (the difference between the inner diameter of the section 432 with a larger inner diameter and the outer diameter of the base 13 is small). The inner diameter of the section 432 with a smaller inner diameter is larger than the outer diameter of the capillary 12 but smaller than the outer diameter of the base 13, so that the section 433 with a smaller inner diameter blocks the base 13, that is, limits the axial movement of the ion source consumable 11. At the same time, the section 432 with a larger inner diameter limits the radial movement of the ion source consumable 11. The width of the opening 434 is larger than the outer diameter of the capillary 12 but smaller than the outer diameter of the base 13, that is, it allows the capillary 12 to pass through but blocks the base 13.

[0026] As Figure 4 As shown, the deformable part 15 is made of silica gel. The second gas channel 154 is provided inside the body 151. The guiding hole 155 allowing the conductive probe 16 to pass through is provided in the second gas channel 154. The annular part 152 is at one end of the body 151, the cylindrical part 153 is at the other end of the body 151. A plurality of annular protrusions 156 are on the outer side of the cylindrical part 153. The lower end opening 157 of the cylindrical part 153 is in a flared shape to facilitate the insertion of the capillary 12. The fixing seat 21 has a first gas channel. The annular groove surrounding the opening of the first gas channel is provided on the side wall of the fixing seat 21. The annular groove allows the annular part 152 to be snapped in to achieve sealing.

[0027] As Figure 5 As shown, the cylindrical part 153 is snapped into the base 13, squeezing the carbon steel round tube 14 in the base 13. The body 151 and the annular part 152 are exposed outside the base 13. The capillary 12 passes through the base 13, the cylindrical part 153 and the body 151 and communicates with the second gas channel 154. The central axis of the guiding hole 155 and the central axis of the capillary 12 are collinear. The conductive probe 16 passes through the guiding hole 155 and enters the capillary 12. The spherical conductor 17 is fixed to one end of the conductive probe 16 and is inside the annular part 152.

[0028] The grasping method of the ion source consumable in the embodiment of the present invention, that is, the working method of the grasping device in this embodiment. The grasping method of the ion source consumable is as follows: Driven by the driving unit 31, the moving part 41 moves forward along the guide rail 22; As Figure 1As shown, when the moving member 41 is moved three-dimensionally, the capillary 12 of the ion source consumable 11 passes through the opening 434 on the moving member 41 and enters the smaller-inner-diameter section 433 and the larger-inner-diameter section 432. As Figure 2 shown, under the drive of the drive unit 31, the moving member 41 moves reversely along the guide rail 22, so that the base 13 enters the larger-inner-diameter section 432 and is blocked by the smaller-inner-diameter section 433. After that, the annular portion 152 at one end of the ion source consumable 11 enters the annular groove on the side wall of the fixed seat and is deformed by extrusion, realizing the seal between the fixed seat 21 and the ion source consumable 11. The first gas passage in the fixed seat 21 communicates with the capillary 12 through the second gas passage 154.

Claims

1. A grasping device for ion source consumables, the grasping device comprising a fixed seat, the ion source consumables comprising a base and a capillary tube, one end of the capillary tube being inserted into the base; characterized in that, The gripping device for the ion source consumable further comprises: A guide rail and a driving unit, the guide rail and the driving unit being arranged on the fixed seat; A moving member, the moving member being arranged on the guide rail and moving forward or backward along the guide rail under the drive of the driving unit; the moving member includes an opening and a carrying portion communicating with the opening for carrying the ion source consumable, the carrying portion includes a gradually decreasing inner diameter section, a larger inner diameter section, and a smaller inner diameter section arranged in sequence, the opening allows the capillary to pass through, the larger inner diameter section allows the base to enter, and the smaller inner diameter section allows the capillary to pass through and blocks the base; The fixed seat has a first gas passage, and the capillary of the consumable in the carrying portion communicates with the first gas passage.

2. The grasping device for the ion source consumable according to claim 1, characterized in that The moving member includes a first part and a second part, the first part is arranged on the guide rail, the second part is connected to the first part and is perpendicular to the first part, and the carrying portion is arranged on the second part.

3. The grasping device for the ion source consumables according to claim 1, wherein, The extending direction of the carrying portion is parallel to the guide rail.

4. The gripping device for the ion source consumables according to claim 1, characterized in that, The ion source consumable further comprises: A deformable member, the deformable member includes an annular portion, a body, and a cylindrical portion, the body has a second gas passage inside, the second gas passage has a guiding hole allowing a conductive probe to pass through, the annular portion is at one end of the body, the cylindrical portion is at the other end of the body, the cylindrical portion is snapped into the base, the capillary passes through the base, the cylindrical portion, and the body and communicates with the second gas passage, and the conductive probe passes through the guiding hole and enters the capillary.

5. The gripping device for the ion source consumable according to claim 4, wherein The fixed seat has an annular groove surrounding the outlet of the first gas passage, the annular groove allows the annular portion to enter, and the central axis of the annular groove is collinear with the central axis of the carrying portion.

6. The gripping device for the ion source consumable according to claim 4, wherein, The outer side of the cylindrical portion has a plurality of annular protrusions snapped into the base.

7. A method for gripping an ion source consumable, the ion source consumable includes a base and a capillary, one end of the capillary is inserted into the base, and the method for gripping the ion source consumable is: Under the drive of the driving unit, the moving member moves forward along the guide rail, and the guide rail is arranged on the fixed seat; Move the moving member, the capillary passes through the opening on the moving member and enters the smaller inner diameter section, the base enters the larger inner diameter section and is blocked by the smaller inner diameter section; Under the drive of the driving unit, the moving member moves backward along the guide rail, one end of the ion source consumable contacts the fixed seat and is sealed, and the first gas passage in the fixed seat communicates with the capillary.

8. The gripping method of the ion source consumable according to claim 7, wherein The ion source consumable further comprises: A deformable member, the deformable member includes an annular portion, a body, and a cylindrical portion, the body has a second gas passage inside, the second gas passage has a guiding hole allowing a conductive probe to pass through, the annular portion is at one end of the body, the cylindrical portion is at the other end of the body, the cylindrical portion is snapped into the base, the capillary passes through the base, the cylindrical portion, and the body and communicates with the second gas passage, and the conductive probe passes through the guiding hole and enters the capillary.

9. The gripping method of the ion source consumable according to claim 8, wherein, The fixed seat has an annular groove surrounding the outlet of the first gas passage, and the annular groove allows the annular portion to enter.

10. The gripping method of the ion source consumable according to claim 7, wherein The moving member includes a first part and a second part. The first part is arranged on the guide rail, the second part is connected to the first part and is perpendicular to the first part, and the larger-inner-diameter section and the smaller-inner-diameter section are arranged on the second part.

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